Overview
The LTC2312ITS8-12#WTRPBF, produced by Analog Devices Inc., is a 12-bit, 500ksps serial sampling Analog-to-Digital Converter (ADC) designed for high-performance and low-power applications. This ADC operates from a single 3V or 5V supply, drawing only 3mA of current, making it ideal for compact, low-power, high-speed systems. The device features an integrated low drift reference and reference buffer, providing a low-cost, high-performance solution with excellent AC performance, including a Signal-to-Noise and Distortion Ratio (SINAD) of 72.7dB and Total Harmonic Distortion (THD) of –84dB at 500ksps sampling rate.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Sampling Rate | 500 ksps |
| Supply Voltage | 3V or 5V |
| Supply Current | 3 mA (typical at 500 ksps) |
| Reference Voltage | 2.048V or 4.096V (internal, low drift) |
| Operating Temperature Range | -40°C to 125°C |
| Digital I/O Supply Range | 1.8V to 5V |
| Package Type | 8-Lead TSOT-23 |
| SINAD | 72.7 dB |
| THD | -84 dB |
Key Features
- High-speed SPI-compatible serial interface supporting 1.8V, 2.5V, 3V, and 5V logic.
- No cycle latency, ensuring continuous conversion without waiting periods.
- Guaranteed no missing codes in 12-bit resolution.
- Low noise performance with SNR of 73 dB.
- Low power consumption: 8 mW at 500 ksps and 3V supply.
- Internal low drift reference (maximum 20 ppm/°C) and reference buffer.
- Automatic nap mode after conversions, reducing supply current at lower sampling rates.
- Fast wake-up time from nap mode, shorter than one conversion cycle.
- Independent digital I/O supply range from 1.8V to 5V.
Applications
- Communication systems
- High-speed data acquisition
- Handheld terminal interfaces
- Medical imaging processing
- Uninterruptible power supplies
- Battery-powered systems
- Automotive applications
Q & A
- What is the resolution of the LTC2312ITS8-12#WTRPBF ADC?
The resolution is 12 bits.
- What is the maximum sampling rate of the LTC2312ITS8-12#WTRPBF?
The maximum sampling rate is 500 ksps.
- What are the supply voltage options for the LTC2312ITS8-12#WTRPBF?
The device can operate from a single 3V or 5V supply.
- What is the typical supply current of the LTC2312ITS8-12#WTRPBF at 500 ksps?
The typical supply current is 3 mA.
- What is the operating temperature range of the LTC2312ITS8-12#WTRPBF?
The operating temperature range is -40°C to 125°C.
- Does the LTC2312ITS8-12#WTRPBF have an internal reference?
Yes, it has an internal low drift reference (2.048V or 4.096V) and reference buffer.
- What is the digital I/O supply range of the LTC2312ITS8-12#WTRPBF?
The digital I/O supply range is from 1.8V to 5V.
- What is the package type of the LTC2312ITS8-12#WTRPBF?
The package type is 8-Lead TSOT-23.
- Does the LTC2312ITS8-12#WTRPBF support SPI interface?
Yes, it supports a high-speed SPI-compatible serial interface.
- How does the LTC2312ITS8-12#WTRPBF manage power consumption at lower sampling rates?
The device automatically enters nap mode after conversions, reducing supply current at lower sampling rates.
